#4D3D90
Closest named color: Dark Slate Blue (#483D8B). oklch(42.3% 0.132 288.3), rgb(77, 61, 144).
Aa
White text reads best on this color (8.80:1).
About this color
#4D3D90 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.132 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.012 away. White text reads best on it, at 8.80:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.38:1 |
| White text | 8.80:1 |
Values
| HEX | #4D3D90 |
| RGB | rgb(77, 61, 144) |
| HSL | hsl(252, 40%, 40%) |
| OKLCH | oklch(42.3% 0.132 288.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4D3D90 | 8.80:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #4D3D90 | 2.38:1 | Fails | Lc 14.1 | Not readable |
| #4D3D90 text on white | 8.80:1 | AAA | Lc 89.8 | Fine for body text |
| #4D3D90 text on black | 2.38:1 | Fails | Lc -12.4 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D7D5F4
oklch(88.4% 0.042 288.5)
-
Step 300
300
#BEB9F0
oklch(80.9% 0.077 288.7)
-
Step 400
400
#9D93E9
oklch(70.6% 0.124 288.1)
-
Step 500
500
#8776E2
oklch(63.1% 0.158 288.2)
-
Step 600
600
#725CCF
oklch(55.5% 0.171 288.4)
-
Step 700
700
#604BB4
oklch(49.1% 0.16 288.3)
-
Step 800
800 (this color)
#4D3D90
oklch(42.3% 0.132 288.3)
-
Step 900
900
#403674
oklch(37.7% 0.102 287.9)
-
Step 950
950
#262044
oklch(27% 0.065 288.9)
#4D3D90 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0B4C93 | 0.075 |
| Deuteranopia (no green cones) | #0C488E | 0.074 |
| Tritanopia (no blue cones) | #384F60 | 0.109 |
| Achromatopsia (no color) | #4A4A4A | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3D90
#4D3D90
oklch(42.3% 0.132 288.3)
- #535100
#535100
oklch(42.3% 0.091 108.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4D3D90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.012
- Blueberry #464196 ΔE 0.017
- Rebecca Purple #663399 ΔE 0.051
- Twilight #4E518B ΔE 0.056
- Cobalt #1E488F ΔE 0.063
- Dusk #4E5481 ΔE 0.072
- Dusk Blue #26538D ΔE 0.073
- Sapphire #2138AB ΔE 0.078
Use #4D3D90 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.